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TWI882075B - Touch sensing device and touch sensing system - Google Patents

Touch sensing device and touch sensing system Download PDF

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Publication number
TWI882075B
TWI882075B TW110105637A TW110105637A TWI882075B TW I882075 B TWI882075 B TW I882075B TW 110105637 A TW110105637 A TW 110105637A TW 110105637 A TW110105637 A TW 110105637A TW I882075 B TWI882075 B TW I882075B
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touch
active pen
sensing device
pen
signal
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TW110105637A
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Chinese (zh)
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TW202132964A (en
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崔浩燮
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南韓商矽工廠股份有限公司
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • G06F3/04812—Interaction techniques based on cursor appearance or behaviour, e.g. being affected by the presence of displayed objects
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • G06F3/0383—Signal control means within the pointing device
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0442—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/038—Indexing scheme relating to G06F3/038
    • G06F2203/0382—Plural input, i.e. interface arrangements in which a plurality of input device of the same type are in communication with a PC
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • User Interface Of Digital Computer (AREA)
  • Position Input By Displaying (AREA)

Abstract

An embodiment can reduce the searching time and the report rate for an active pen through a local search for the active pen.

Description

觸摸感測裝置和觸摸感測系統Touch sensing device and touch sensing system

本實施例係有關於用於感測主動式筆的觸摸或接近的技術和顯示裝置。 This embodiment relates to technology and a display device for sensing the touch or proximity of an active pen.

用於識別接近或觸摸觸摸面板的外部物體的技術被稱為觸摸感測技術。觸摸面板在平面上與顯示面板放置在同一位置。因此，使用者可以在觀看顯示面板的圖像的同時將使用者操縱信號輸入到觸摸面板。與諸如滑鼠輸入方法或鍵盤輸入方法等的先前其它使用者操作信號輸入類型相比，這種產生使用者操作信號的方法對於使用者而言非常直觀。 The technology for recognizing an external object approaching or touching a touch panel is called touch sensing technology. The touch panel is placed at the same position as the display panel on a plane. Therefore, the user can input a user operation signal to the touch panel while viewing the image of the display panel. This method of generating a user operation signal is very intuitive for the user compared to other previous user operation signal input types such as a mouse input method or a keyboard input method.

根據這樣的優點，觸摸感測技術被應用於包括顯示面板的各種電子裝置。觸摸感測裝置可以將驅動信號供應至佈置在觸摸面板中的驅動電極，可以接收形成在感測電極中的回應信號，並且可以感測外部物體對觸摸面板的觸摸或接近。觸摸面板在驅動電極和感測電極之間產生電容。電容的變化可以產生外部物體的觸摸或接近。 According to such advantages, touch sensing technology is applied to various electronic devices including display panels. The touch sensing device can supply a driving signal to a driving electrode arranged in a touch panel, can receive a response signal formed in a sensing electrode, and can sense the touch or approach of an external object to the touch panel. The touch panel generates capacitance between the driving electrode and the sensing electrode. The change in capacitance can generate the touch or approach of an external object.

除了輸入手指之外，用戶還可以使用主動式筆以輸入使用者操縱信號。主動式筆和觸摸感測裝置之間的資料通信可以經歷以下處理。當觸摸感測裝置發送可以被主動式筆識別的上行鏈路信號時，主動式筆可以接收上行鏈 路信號並識別觸摸感測裝置。此後，當主動式筆發送可以由觸摸感測裝置識別的下行鏈路信號時，觸摸感測裝置可以接收下行鏈路信號並識別主動式筆。 In addition to inputting fingers, the user can also use an active pen to input user manipulation signals. Data communication between the active pen and the touch sensing device can undergo the following processing. When the touch sensing device sends an uplink signal that can be recognized by the active pen, the active pen can receive the uplink signal and recognize the touch sensing device. Thereafter, when the active pen sends a downlink signal that can be recognized by the touch sensing device, the touch sensing device can receive the downlink signal and recognize the active pen.

直到由觸摸感測裝置發送上行鏈路信號的步驟可以被定義為對主動式筆的搜索。相反，從用於發送上行鏈路信號的步驟、到用於藉由觸摸感測裝置和主動式筆彼此識別並且發送和接收下行鏈路信號的步驟的步驟可以被定義為主動式筆的感測。如上所述，對主動式筆的搜索和對主動式筆的感測可以彼此區分。最大的不同在於，搜索可以是在觸摸感測裝置不知道主動式筆的存在的狀態下藉由觸摸感測裝置發現主動式筆的存在的操作，以及感測可以是在觸摸感測裝置知道主動式筆的存在的狀態下藉由觸摸感測裝置與主動式筆交換資料的操作。 The steps until the uplink signal is sent by the touch sensing device can be defined as a search for the active pen. Conversely, the steps from the step for sending the uplink signal to the step for identifying each other by the touch sensing device and the active pen and sending and receiving the downlink signal can be defined as the sensing of the active pen. As described above, the search for the active pen and the sensing of the active pen can be distinguished from each other. The biggest difference is that the search can be an operation of discovering the existence of the active pen by the touch sensing device in a state where the touch sensing device is unaware of the existence of the active pen, and the sensing can be an operation of exchanging data with the active pen by the touch sensing device in a state where the touch sensing device is aware of the existence of the active pen.

然而，傳統上，觸摸感測裝置順序進行搜索和感測主動式筆的操作。即，儘管主動式筆位於觸摸面板的底部，但是觸摸感測裝置也從觸摸面板的頂部搜索或感測主動式筆。由於觸摸感測裝置甚至對不存在主動式筆的觸摸面板區域進行搜索或感測，因此這種方法可能導致不必要的處理，並且導致搜索時間或感測時間增加的問題。在這種情況下，主動式筆的感測的報告率增加。如果釋放主動式筆，即，主動式筆與觸摸面板分離，則感測停止，並且再次搜索主動式筆，這種現象可能重複。 However, conventionally, the touch sensing device sequentially searches for and senses the operation of the active pen. That is, although the active pen is located at the bottom of the touch panel, the touch sensing device searches for or senses the active pen from the top of the touch panel. Since the touch sensing device searches or senses even the area of the touch panel where the active pen does not exist, this method may cause unnecessary processing and cause a problem of increased search time or sensing time. In this case, the report rate of the sensing of the active pen increases. If the active pen is released, that is, the active pen is separated from the touch panel, the sensing stops, and the active pen is searched again, and this phenomenon may be repeated.

關於這樣的技術，本實施例旨在提供能夠減少搜索時間和報告率的觸摸感測裝置操作多個主動式筆的技術。 Regarding such technology, the present embodiment aims to provide a technology capable of reducing the search time and reporting rate of a touch sensing device operating multiple active pens.

在這樣的背景下，本發明的目的是提供用於在釋放主動式筆的位置或其附近搜索主動式筆的技術。 In this context, an object of the present invention is to provide a technique for searching for an active pen at or near a location where the active pen was released.

本發明的另一目的是提供用於在釋放多個主動式筆的位置或其附近一起搜索多個主動式筆的技術。 Another object of the present invention is to provide a technique for searching for multiple active pens together at or near the location where the multiple active pens are released.

本發明的又一目的是提供用於將一個幀中包括的多個觸摸間隔分配至多個主動式筆的方法的技術。 Another object of the present invention is to provide a method for allocating multiple touch intervals included in a frame to multiple active pens.

為此，在一方面，本發明提供一種觸摸感測裝置，用於使用觸摸電極感測至少一個主動式筆，所述觸摸感測裝置包括：驅動電路，其被配置為發送上行鏈路信號；以及感測電路，其被配置為接收與所述上行鏈路信號相對應的下行鏈路信號，其中，在經由第一觸摸電極從第一主動式筆的第一下行鏈路信號的接收停止的情況下，所述感測電路經由所述第一觸摸電極或靠近所述第一觸摸電極的觸摸電極開始搜索所述第一主動式筆。 To this end, in one aspect, the present invention provides a touch sensing device for sensing at least one active pen using a touch electrode, the touch sensing device comprising: a driving circuit configured to send an uplink signal; and a sensing circuit configured to receive a downlink signal corresponding to the uplink signal, wherein, when the reception of the first downlink signal from the first active pen via the first touch electrode stops, the sensing circuit starts searching for the first active pen via the first touch electrode or a touch electrode close to the first touch electrode.

在該裝置中，在經由所述第一觸摸電極的所述第一下行鏈路信號的接收停止的情況下，所述驅動電路可以經由所述第一觸摸電極或靠近所述第一觸摸電極的觸摸電極來發送第一上行鏈路信號以搜索所述第一主動式筆。 In the device, when the reception of the first downlink signal via the first touch electrode stops, the driving circuit may send a first uplink signal via the first touch electrode or a touch electrode close to the first touch electrode to search for the first active pen.

在該裝置中，所述感測電路可以重新開始經由所述第一觸摸電極或靠近所述第一觸摸電極的觸摸電極來接收所述第一下行鏈路信號，並且可以恢復感測所述第一主動式筆的觸摸或接近。 In the device, the sensing circuit can restart receiving the first downlink signal via the first touch electrode or the touch electrode close to the first touch electrode, and can resume sensing the touch or proximity of the first active pen.

在該裝置中，所述感測電路可以接收用於定義顯示間隔和觸摸間隔的同步信號，並且可以在一些觸摸間隔內接收所述第一下行鏈路信號以感測所述第一主動式筆。 In the device, the sensing circuit can receive a synchronization signal for defining a display interval and a touch interval, and can receive the first downlink signal in some touch intervals to sense the first active pen.

在該裝置中，所述驅動電路可以將第二上行鏈路信號發送至第二主動式筆，以及所述感測電路可以經由第二觸摸電極從所述第二主動式筆接收與所述第二上行鏈路信號相對應的第二下行鏈路信號，並且可以在經由所述第 二觸摸電極的所述第二下行鏈路信號的接收停止的情況下，藉由等待經由所述第二觸摸電極或靠近所述第二觸摸電極的觸摸電極接收所述第二下行鏈路信號，來開始搜索所述第二主動式筆。 In the device, the driving circuit can send a second uplink signal to the second active pen, and the sensing circuit can receive a second downlink signal corresponding to the second uplink signal from the second active pen via the second touch electrode, and can start searching for the second active pen by waiting for the second downlink signal to be received via the second touch electrode or a touch electrode close to the second touch electrode when the reception of the second downlink signal via the second touch electrode stops.

在該裝置中，所述感測電路可以在每個幀內感測所述第一主動式筆和所述第二主動式筆這兩者。 In the device, the sensing circuit can sense both the first active pen and the second active pen in each frame.

在該裝置中，所述感測電路可以接收用於定義顯示間隔和觸摸間隔的同步信號，以及可以在一個幀的一些觸摸間隔內感測所述第一主動式筆並且在該一個幀的其它觸摸間隔內感測所述第二主動式筆。 In the device, the sensing circuit can receive a synchronization signal for defining a display interval and a touch interval, and can sense the first active pen in some touch intervals of one frame and sense the second active pen in other touch intervals of the one frame.

在該裝置中，所述驅動電路可以將觸摸驅動信號發送至所述觸摸電極，並且所述感測電路可以響應於所述觸摸電極針對所述觸摸驅動信號的回應信號來感測物體對面板的觸摸或接近。 In the device, the driving circuit can send a touch driving signal to the touch electrode, and the sensing circuit can sense the touch or approach of an object to the panel in response to a response signal of the touch electrode to the touch driving signal.

在該裝置中，在預定時間中未接收到所述第一下行鏈路信號的情況下，所述感測電路可以開始搜索所述第一主動式筆。 In the device, when the first downlink signal is not received within a predetermined time, the sensing circuit can start searching for the first active pen.

在另一方面，本發明提供一種觸摸感測系統，用於感測多個主動式筆，所述觸摸感測系統包括：面板，其包括第一觸摸區域和第二觸摸區域；以及觸摸感測裝置，其被配置為感測所述第一觸摸區域中的第一主動式筆的觸摸或接近，並且感測所述第二觸摸區域中的第二主動式筆的觸摸或接近，其中，在所述第一觸摸區域中的所述第一主動式筆的感測停止的情況下，所述觸摸感測裝置在所述第一觸摸區域中或在所述第一觸摸區域的附近進行搜索以檢查所述第一主動式筆的存在。 On the other hand, the present invention provides a touch sensing system for sensing multiple active pens, the touch sensing system comprising: a panel including a first touch area and a second touch area; and a touch sensing device configured to sense the touch or approach of a first active pen in the first touch area, and sense the touch or approach of a second active pen in the second touch area, wherein, when the sensing of the first active pen in the first touch area stops, the touch sensing device searches in the first touch area or in the vicinity of the first touch area to check for the presence of the first active pen.

在該系統中，在所述第二觸摸區域中的所述第二主動式筆的感測停止的情況下，所述觸摸感測裝置可以進行所述第一觸摸區域中所述第一主動式筆的搜索和所述第二觸摸區域中所述第二主動式筆的搜索這兩者。 In the system, when the sensing of the second active pen in the second touch area stops, the touch sensing device can perform both a search for the first active pen in the first touch area and a search for the second active pen in the second touch area.

在該系統中，所述觸摸感測裝置可以接收用於定義顯示間隔和觸摸間隔的同步信號，可以在一個幀的一些觸摸間隔內搜索所述第一主動式筆，並且可以在該一個幀的其它觸摸間隔內搜索所述第二主動式筆。 In the system, the touch sensing device can receive a synchronization signal for defining a display interval and a touch interval, can search for the first active pen in some touch intervals of a frame, and can search for the second active pen in other touch intervals of the frame.

在該系統中，在恢復對所述第一主動式筆和所述第二主動式筆的感測的情況下，所述觸摸感測裝置可以在所述一些觸摸間隔內感測所述第一主動式筆，並且可以在所述其它觸摸間隔內感測所述第二主動式筆。 In the system, in the case where the sensing of the first active pen and the second active pen is restored, the touch sensing device can sense the first active pen in some of the touch intervals, and can sense the second active pen in the other touch intervals.

在該系統中，所述觸摸感測裝置可以藉由所述搜索來識別所述第一主動式筆的位置。 In the system, the touch sensing device can identify the position of the first active pen through the search.

如上所述，根據本發明，可以藉由局部搜索主動式筆來減少主動式筆的搜索時間和報告率。 As described above, according to the present invention, the search time and report rate of the active pen can be reduced by locally searching the active pen.

另外，根據本發明，可以同時操作多個主動式筆。 In addition, according to the present invention, multiple active pens can be operated simultaneously.

10:主動式筆 10: Active pen

10-1:主動式筆，第一主動式筆 10-1: Active pen, the first active pen

10-2:主動式筆，第二主動式筆 10-2: Active pen, second active pen

10-3:主動式筆 10-3: Active pen

20:物體 20: Objects

100:顯示裝置 100: Display device

110:面板 110: Panel

120:資料驅動裝置 120: Data drive device

130:閘極驅動裝置 130: Gate drive device

140:觸摸感測裝置 140: Touch sensing device

150:資料處理裝置 150: Data processing device

160:主機 160:Host

210:驅動電路 210:Drive circuit

220:感測電路 220: Sensing circuit

BEACON:信標 BEACON: Beacon

CH1:通道 CH1: Channel

CH2:通道 CH2: Channel

CH3:通道 CH3: Channel

CH4:通道 CH4: Channel

CH5:通道 CH5: Channel

CH6:通道 CH6: Channel

CH7:通道 CH7: Channel

CH8:通道 CH8: Channel

D:顯示間隔 D: Display interval

DATA:狀態資訊 DATA: Status information

DCS:資料控制信號 DCS: Data Control Signal

DL:下行鏈路信號 DL: Downlink signal

DL1:第一下行鏈路信號 DL1: First downlink signal

DL2:第二下行鏈路信號 DL2: Second downlink signal

DL3:第三下行鏈路信號 DL3: The third downlink signal

DRX:下行鏈路接收信號 DRX: Downlink receive signal

F:電容變化資料 F: Capacitance change data

GCS:閘極控制信號 GCS: Gate Control Signal

GL:閘極線 GL: Gate line

LSA1:第一局部感測區域 LSA1: First local sensing area

LSA2:第二局部感測區域 LSA2: Second local sensing area

LHB:長水平消隱 LHB: Long Horizontal Blanking

MUC:多工器 MUC: Multiplexer

MUTE:不與觸摸感測裝置交換信號 MUTE: Do not exchange signals with the touch sensor device

MUX:多工器 MUX: Multiplexer

P:像素 P: Pixels

POS:位置 POS: Position

PCS:面板控制信號 PCS: Panel control signal

R:主動式筆被釋放的點 R: The point where the active pen is released

SYNC:同步信號 SYNC: synchronization signal

T:觸摸間隔 T: Touch interval

TCS:觸摸控制信號 TCS: Touch Control Signal

TE:觸摸電極 TE: Touch electrode

TILT:傾斜 TILT: Tilt

UL:上行鏈路信號 UL: Uplink signal

UL1:第一上行鏈路信號 UL1: First uplink signal

UL2:第二上行鏈路信號 UL2: Second uplink signal

UL3:第三上行鏈路信號 UL3: Third uplink signal

UTX:上行鏈路傳輸信號 UTX: Uplink transmission signal

圖1是示出根據實施例的顯示裝置的結構的圖。 FIG1 is a diagram showing the structure of a display device according to an embodiment.

圖2是示出根據實施例的觸摸感測裝置的結構的圖。 FIG2 is a diagram showing the structure of a touch sensing device according to an embodiment.

圖3是用於描述一個主動式筆和面板交換鏈路信號的圖。 Figure 3 is a diagram used to describe the exchange link signals between an active pen and a panel.

圖4是用於描述根據實施例的多個主動式筆和面板交換鏈路信號的圖。 FIG. 4 is a diagram for describing multiple active pens and panel exchange link signals according to an embodiment.

圖5是用於描述根據實施例的主動式筆的釋放的圖。 FIG. 5 is a diagram for describing the release of the active pen according to an embodiment.

圖6是用於描述根據實施例的觸摸感測裝置的感測的概念的圖。 FIG6 is a diagram for describing the concept of sensing of a touch sensing device according to an embodiment.

圖7是用於描述根據實施例的觸摸感測裝置的局部感測的圖。 FIG7 is a diagram for describing local sensing of a touch sensing device according to an embodiment.

圖8是用於描述觸摸感測裝置的順序感測的示例性圖。 FIG8 is an exemplary diagram for describing sequential sensing of a touch sensing device.

圖9是用於描述根據實施例的觸摸感測裝置的局部感測的示例性圖。 FIG9 is an exemplary diagram for describing local sensing of a touch sensing device according to an embodiment.

圖10是用於描述觸摸感測裝置的順序搜索的示例性圖。 FIG. 10 is an exemplary diagram for describing a sequential search of a touch sensing device.

圖11是用於描述根據實施例的觸摸感測裝置的局部搜索的示例性圖。 FIG. 11 is an exemplary diagram for describing a local search of a touch sensing device according to an embodiment.

圖12是用於描述根據實施例的在搜索和感測主動式筆的情況下針對各觸摸間隔僅從一個主動式筆接收的資料的示例性圖。 FIG. 12 is an exemplary diagram for describing data received from only one active pen for each touch interval in the case of searching and sensing an active pen according to an embodiment.

圖13是用於描述根據實施例的在搜索和感測主動式筆的情況下針對各觸摸間隔從多個主動式筆接收的資料的示例性圖。 FIG. 13 is an exemplary diagram for describing data received from multiple active pens for each touch interval in the case of searching and sensing an active pen according to an embodiment.

圖1是示出根據實施例的顯示裝置100的結構的圖。 FIG1 is a diagram showing the structure of a display device 100 according to an embodiment.

參考圖1，顯示裝置100可以包括面板110、資料驅動裝置120、閘極驅動裝置130、觸摸感測裝置140、資料處理裝置150、主機160等。 Referring to FIG. 1 , the display device 100 may include a panel 110, a data driving device 120, a gate driving device 130, a touch sensing device 140, a data processing device 150, a host 160, etc.

資料驅動裝置120、閘極驅動裝置130、觸摸感測裝置140和資料處理裝置150中的至少一個驅動裝置可以被稱為顯示驅動裝置。例如，資料驅動裝置120可以被稱為顯示驅動裝置。包括資料驅動裝置120和觸摸感測裝置140的驅動裝置可以被稱為顯示驅動裝置。一個驅動裝置可以被包括在另一驅動裝置中。例如，資料驅動裝置120可以被包括在觸摸感測裝置140中。可選地，閘極驅動裝置130可以被包括在資料驅動裝置120中。在實施例中，一個驅動裝置的僅一些元件可以被包括在另一驅動裝置中。 At least one of the data driver 120, the gate driver 130, the touch sensing device 140, and the data processing device 150 may be referred to as a display driver. For example, the data driver 120 may be referred to as a display driver. A driver including the data driver 120 and the touch sensing device 140 may be referred to as a display driver. One driver may be included in another driver. For example, the data driver 120 may be included in the touch sensing device 140. Alternatively, the gate driver 130 may be included in the data driver 120. In embodiments, only some components of one drive device may be included in another drive device.

資料驅動裝置120可以驅動連接至像素P的資料線。閘極驅動裝置130可以驅動連接至像素P的閘極線GL。此外，觸摸感測裝置140可以驅動佈置在面板110中的觸摸電極TE。 The data driving device 120 may drive the data line connected to the pixel P. The gate driving device 130 may drive the gate line GL connected to the pixel P. In addition, the touch sensing device 140 may drive the touch electrode TE disposed in the panel 110.

資料驅動裝置120可以向資料線供應資料電壓，以在面板110的各像素P中顯示圖像。資料驅動裝置120可以包括至少一個資料驅動器積體電路(IC)。至少一個資料驅動器IC可以藉由帶式自動接合(TAB)方法或玻璃覆晶(COG)方法連接至面板110的接合墊，或者可以直接形成在面板110上。在一些情況下，可以在面板110上整合並形成至少一個資料驅動器IC。此外，可以藉由薄膜覆晶(COF)方法來實現資料驅動裝置120。 The data driver 120 may supply a data voltage to the data line to display an image in each pixel P of the panel 110. The data driver 120 may include at least one data driver integrated circuit (IC). The at least one data driver IC may be connected to a bonding pad of the panel 110 by a tape automated bonding (TAB) method or a chip on glass (COG) method, or may be directly formed on the panel 110. In some cases, at least one data driver IC may be integrated and formed on the panel 110. In addition, the data driver 120 may be implemented by a chip on film (COF) method.

資料驅動裝置120可以從資料處理裝置150接收圖像資料和資料控制信號DCS。資料驅動裝置120可以基於由圖像資料指示的各像素的灰階值來產生資料電壓，並且可以驅動相應的像素。 The data driving device 120 may receive image data and a data control signal DCS from the data processing device 150. The data driving device 120 may generate a data voltage based on the grayscale value of each pixel indicated by the image data, and may drive the corresponding pixel.

資料控制信號DCS可以包括至少一個同步信號。例如，資料控制信號DCS可以包括垂直同步訊號VSYNC、水平同步信號HSYNC、時分信號等。資料驅動裝置120可以識別由垂直同步訊號VSYNC指示的幀的分割，並且可以在除了垂直同步訊號VSYNC指示的垂直消隱間隔之外的間隔驅動各像素。資料驅動裝置120可以回應於水平同步信號HSYNC檢查各水平線的圖像資料，並且可以針對各水平線供應資料電壓。資料驅動裝置120可以回應於時分信號來區分顯示間隔和觸摸間隔，並且可以在顯示間隔中驅動各像素P。 The data control signal DCS may include at least one synchronization signal. For example, the data control signal DCS may include a vertical synchronization signal VSYNC, a horizontal synchronization signal HSYNC, a time division signal, etc. The data driver 120 may identify the division of the frame indicated by the vertical synchronization signal VSYNC, and may drive each pixel at an interval other than the vertical blanking interval indicated by the vertical synchronization signal VSYNC. The data driver 120 may check the image data of each horizontal line in response to the horizontal synchronization signal HSYNC, and may supply a data voltage for each horizontal line. The data driver 120 may distinguish between a display interval and a touch interval in response to the time division signal, and may drive each pixel P in the display interval.

閘極驅動裝置130可以將掃描信號供應至閘極線GL，以使位於各像素P中的電晶體導通或截止。根據驅動方法，閘極驅動裝置130可以如圖1中所示僅位於面板110的一側，或者閘極驅動裝置130可以被分割為兩個驅動裝置，這兩個驅動裝置可以位於面板110的任一側。此外，閘極驅動裝置130可以包括至少一個閘極驅動器IC。至少一個閘極驅動器IC可以藉由TAB方法或COG方法 連接至面板110的接合墊，或者可以被實現為面板內閘極(GIP)並直接形成在面板110上。在一些情況下，可以在面板110上整合並形成至少一個閘極驅動器IC。此外，可以藉由COF方法來實現閘極驅動裝置130。 The gate driver 130 may supply a scan signal to the gate line GL to turn on or off a transistor located in each pixel P. According to a driving method, the gate driver 130 may be located only on one side of the panel 110 as shown in FIG. 1 , or the gate driver 130 may be divided into two drivers, which may be located on either side of the panel 110. In addition, the gate driver 130 may include at least one gate driver IC. The at least one gate driver IC may be connected to a bonding pad of the panel 110 by a TAB method or a COG method, or may be implemented as a gate in panel (GIP) and formed directly on the panel 110. In some cases, at least one gate driver IC may be integrated and formed on the panel 110. In addition, the gate driver device 130 may be implemented by a COF method.

閘極驅動裝置130可以從資料處理裝置150接收閘極控制信號GCS。閘極控制信號GCS可以包括多個時脈信號。此外，閘極驅動裝置130可以使用時脈信號產生掃描信號，並將掃描信號供應至閘極線GL。 The gate driver 130 may receive a gate control signal GCS from the data processing device 150. The gate control signal GCS may include a plurality of clock signals. In addition, the gate driver 130 may generate a scan signal using the clock signal and supply the scan signal to the gate line GL.

面板110可以包括顯示面板，並且還可以包括觸控式螢幕面板(TSP)。在這種情況下，顯示面板和TSP可以共用一些元件。例如，用於感測TSP中的觸摸的觸摸電極TE可以(例如，在顯示面板是液晶顯示器(LCD)面板的情況下)用作顯示面板中的被供應共同電壓的共同電極。對於另一示例，觸摸電極TE可以(例如，在顯示面板是有機發光二極體(OLED)面板的情況下)用作顯示面板中的被供應基礎電壓VSS的陰極。從顯示面板和TSP共用一些元件的角度來看，這樣的面板110被稱為整合面板，但是本發明不限於此。此外，In-cell(單元內)型面板已知為顯示面板和TSP整合的形式，但是這僅是面板110的示例。本發明所應用於的面板不限於這樣的In-cell型面板。 The panel 110 may include a display panel, and may also include a touch screen panel (TSP). In this case, the display panel and the TSP may share some components. For example, a touch electrode TE for sensing a touch in the TSP may be used as a common electrode supplied with a common voltage in the display panel (for example, when the display panel is a liquid crystal display (LCD) panel). For another example, the touch electrode TE may be used as a cathode supplied with a base voltage VSS in the display panel (for example, when the display panel is an organic light emitting diode (OLED) panel). From the perspective that the display panel and the TSP share some components, such a panel 110 is referred to as an integrated panel, but the present invention is not limited thereto. In addition, an In-cell type panel is known as a form in which a display panel and a TSP are integrated, but this is only an example of the panel 110. The panel to which the present invention is applied is not limited to such an In-cell type panel.

可以在面板110中佈置多個觸摸電極TE。觸摸感測裝置140可以使用觸摸驅動信號來驅動觸摸電極TE。此外，觸摸感測裝置140可以回應於根據觸摸驅動信號在觸摸電極TE中形成的回應信號來產生觸摸電極TE的感測值。此外，觸摸感測裝置140可以使用針對面板110中所佈置的多個觸摸電極TE的感測值來計算物體20的觸摸座標。所計算出的觸摸座標可以被發送至其它裝置(例如，主機)並由其它裝置使用。 A plurality of touch electrodes TE may be arranged in the panel 110. The touch sensing device 140 may drive the touch electrode TE using a touch drive signal. In addition, the touch sensing device 140 may generate a sensed value of the touch electrode TE in response to a response signal formed in the touch electrode TE according to the touch drive signal. In addition, the touch sensing device 140 may calculate the touch coordinates of the object 20 using the sensed values of the plurality of touch electrodes TE arranged in the panel 110. The calculated touch coordinates may be sent to other devices (e.g., a host) and used by the other devices.

觸摸感測裝置140可以藉由觸摸電極TE與主動式筆10交換信號。觸摸感測裝置140可以將上行鏈路信號供應至觸摸電極TE。主動式筆10可以藉由與觸摸電極TE的接觸來接收上行鏈路信號。例如，上行鏈路信號可以包括諸 如面板資訊和關於協定版本的資訊等的資訊、或者同步信號。主動式筆10可以藉由接收上行鏈路信號來檢查關於面板或協定版本的資訊，並且可以進行信號的同步。 The touch sensing device 140 can exchange signals with the active pen 10 through the touch electrode TE. The touch sensing device 140 can supply an uplink signal to the touch electrode TE. The active pen 10 can receive the uplink signal by contacting the touch electrode TE. For example, the uplink signal can include information such as panel information and information about the protocol version, or a synchronization signal. The active pen 10 can check the information about the panel or the protocol version by receiving the uplink signal, and can synchronize the signal.

主動式筆10可以將下行鏈路信號發送至觸摸電極TE。此外，觸摸感測裝置140可以藉由觸摸電極TE接收下行鏈路信號。下行鏈路信號可以包括關於主動式筆的狀態的資訊。關於主動式筆的狀態的資訊可以包括例如主動式筆的位置、主動式筆的按鈕狀態、主動式筆的電池狀態、主動式筆的傾斜。 The active pen 10 can send a downlink signal to the touch electrode TE. In addition, the touch sensing device 140 can receive the downlink signal through the touch electrode TE. The downlink signal can include information about the state of the active pen. The information about the state of the active pen can include, for example, the position of the active pen, the button state of the active pen, the battery state of the active pen, and the tilt of the active pen.

觸摸感測裝置140可以從資料處理裝置150接收觸摸控制信號TCS。觸摸控制信號TCS可以包括至少一個同步信號。例如，觸摸控制信號TCS可以包括垂直同步訊號VSYNC、時分信號、觸摸同步信號TSYNC等。觸摸感測裝置140可以回應於時分信號或觸摸同步信號TSYNC來區分顯示間隔和觸摸間隔，並且可以在觸摸間隔內驅動觸摸電極TE。 The touch sensing device 140 may receive a touch control signal TCS from the data processing device 150. The touch control signal TCS may include at least one synchronization signal. For example, the touch control signal TCS may include a vertical synchronization signal VSYNC, a time division signal, a touch synchronization signal TSYNC, etc. The touch sensing device 140 may distinguish between a display interval and a touch interval in response to the time division signal or the touch synchronization signal TSYNC, and may drive the touch electrode TE in the touch interval.

在一個實施例中，同步信號可以是相同信號或可以是不同信號。例如，時分信號可以是與觸摸同步信號相同的信號，並且可以是不同的信號。在下文中，為了強調特定功能，可以藉由使用特定名稱來描述時分信號，但是這種描述不限於特定名稱。 In one embodiment, the synchronization signal may be the same signal or may be a different signal. For example, the time division signal may be the same signal as the touch synchronization signal and may be a different signal. In the following, in order to emphasize a specific function, the time division signal may be described by using a specific name, but such description is not limited to the specific name.

基本上可以基於從主機160供應至資料處理裝置150的面板控制信號PCS產生同步信號。 Basically, the synchronization signal can be generated based on the panel control signal PCS supplied from the host 160 to the data processing device 150.

主機160可以將圖像資料發送至資料處理裝置150，並且可以發送用於以幀為單位分割圖像資料的垂直同步訊號VSYNC。資料處理裝置150可以基於垂直同步訊號VSYNC產生時分信號、觸摸同步信號TSYNC等，並且可以將時分信號、觸摸同步信號TSYNC等發送至各個驅動裝置120、130和140。 The host 160 can send the image data to the data processing device 150, and can send the vertical synchronization signal VSYNC for dividing the image data in units of frames. The data processing device 150 can generate a time division signal, a touch synchronization signal TSYNC, etc. based on the vertical synchronization signal VSYNC, and can send the time division signal, the touch synchronization signal TSYNC, etc. to each driving device 120, 130 and 140.

圖2是示出根據實施例的觸摸感測裝置的結構的圖。 FIG2 is a diagram showing the structure of a touch sensing device according to an embodiment.

參考圖2，觸摸感測裝置140可以包括驅動電路210和感測電路220。 Referring to FIG. 2 , the touch sensing device 140 may include a driving circuit 210 and a sensing circuit 220 .

驅動電路210可以在第一時間間隔內將上行鏈路傳輸信號UTX供應至觸摸電極TE。在這種情況下，上行鏈路傳輸信號UTX是在觸摸電極TE中形成的上行鏈路信號。主動式筆中形成的上行鏈路信號可以稱為上行鏈路接收信號。 The driving circuit 210 may supply the uplink transmission signal UTX to the touch electrode TE in the first time interval. In this case, the uplink transmission signal UTX is an uplink signal formed in the touch electrode TE. The uplink signal formed in the active pen may be referred to as an uplink reception signal.

感測電路220可以在與第一時間間隔不重疊的第二時間間隔內從觸摸電極TE接收下行鏈路接收信號DRX。在這種情況下，下行鏈路接收信號DRX是在觸摸電極TE中形成的下行鏈路信號。在主動式筆中形成的下行鏈路信號可以被稱為下行鏈路傳輸信號。 The sensing circuit 220 may receive a downlink reception signal DRX from the touch electrode TE in a second time interval that does not overlap with the first time interval. In this case, the downlink reception signal DRX is a downlink signal formed in the touch electrode TE. The downlink signal formed in the active pen may be referred to as a downlink transmission signal.

在搜索主動式筆的步驟中，驅動電路210可以藉由觸摸電極將上行鏈路信號持續發送至主動式筆。感測電路220可以等待藉由觸摸電極接收下行鏈路信號。 In the step of searching for the active pen, the driving circuit 210 can continuously send the uplink signal to the active pen through the touch electrode. The sensing circuit 220 can wait to receive the downlink signal through the touch electrode.

觸摸電極TE可以是LCD面板中將共同電壓供應至的共同電極。可選地，觸摸電極TE可以是OLED面板的陰極電極。 The touch electrode TE may be a common electrode to which a common voltage is supplied in an LCD panel. Alternatively, the touch electrode TE may be a cathode electrode of an OLED panel.

圖3是用於描述一個主動式筆和面板交換鏈路信號的圖。 Figure 3 is a diagram used to describe the exchange of link signals between an active pen and a panel.

參考圖3，示出在一個主動式筆10與面板110之間發送和接收鏈路信號的處理。發送和接收鏈路信號的處理可以分割為搜索步驟搜索(搜索)和感測步驟感測(感測)。在搜索步驟中，觸摸感測裝置可以藉由面板110發送上行鏈路信號UL以識別主動式筆的存在。在感測步驟中，在識別出主動式筆的存在之後，觸摸感測裝置可以接收下行鏈路信號DL以接收主動式筆的資料。 Referring to FIG. 3 , a process of sending and receiving link signals between an active pen 10 and a panel 110 is shown. The process of sending and receiving link signals can be divided into a search step SEARCH (SEARCH) and a sensing step SENSE (SENSE). In the search step, the touch sensing device can send an uplink signal UL through the panel 110 to identify the presence of the active pen. In the sensing step, after identifying the presence of the active pen, the touch sensing device can receive a downlink signal DL to receive data from the active pen.

在搜索步驟中，觸摸感測裝置的驅動電路可以藉由觸摸電極將上行鏈路信號UL發送至主動式筆10。當主動式筆10觸摸包括觸摸電極的面板110或在預定距離內接近包括觸摸電極的面板110時，主動式筆10可以接收上行鏈路 信號UL。上行鏈路信號UL可以藉由面板110中的一部分或整個面板110被發送至主動式筆10。 In the search step, the driving circuit of the touch sensing device can send an uplink signal UL to the active pen 10 via the touch electrode. When the active pen 10 touches the panel 110 including the touch electrode or approaches the panel 110 including the touch electrode within a predetermined distance, the active pen 10 can receive the uplink signal UL. The uplink signal UL can be sent to the active pen 10 via a portion of the panel 110 or the entire panel 110.

在感測步驟中，觸摸感測裝置的感測電路可以藉由觸摸電極從主動式筆10接收下行鏈路信號DL。當主動式筆10接收上行鏈路信號UL時，主動式筆10可以發送下行鏈路信號DL。下行鏈路信號DL可以被發送至位於由主動式筆觸摸或接近的點處的觸摸電極。 In the sensing step, the sensing circuit of the touch sensing device may receive a downlink signal DL from the active pen 10 via the touch electrode. When the active pen 10 receives the uplink signal UL, the active pen 10 may transmit a downlink signal DL. The downlink signal DL may be transmitted to the touch electrode located at the point touched or approached by the active pen.

當觸摸感測裝置接收到下行鏈路信號DL時，觸摸感測裝置可以持續與主動式筆10交換資料。如果觸摸感測裝置從任何時間點起未接收到下行鏈路信號DL，則觸摸感測裝置可以再次搜索主動式筆。即，觸摸感測裝置可以藉由再次向主動式筆發送上行鏈路信號UL來重複上述處理。在這種情況下，如果觸摸感測裝置從任何時間點起未接收到下行鏈路信號DL，則這可以理解為主動式筆10已經被釋放。 When the touch sensing device receives the downlink signal DL, the touch sensing device can continue to exchange data with the active pen 10. If the touch sensing device does not receive the downlink signal DL from any point in time, the touch sensing device can search for the active pen again. That is, the touch sensing device can repeat the above process by sending the uplink signal UL to the active pen again. In this case, if the touch sensing device does not receive the downlink signal DL from any point in time, this can be understood as the active pen 10 has been released.

圖4是用於描述根據實施例的多個主動式筆與面板交換鏈路信號的圖。 FIG. 4 is a diagram for describing the exchange of link signals between multiple active pens and a panel according to an embodiment.

參考圖4，示出根據實施例的在多個主動式筆與面板110之間發送和接收鏈路信號的處理。在下文中，示出三個主動式筆10-1、10-2和10-3觸摸或接近面板110的示例，但是本發明不限於此。在搜索步驟中，觸摸感測裝置可以識別三個主動式筆10-1、10-2和10-3的存在。在感測步驟中，觸摸感測裝置可以從三個主動式筆10-1、10-2和10-3接收下行鏈路信號。 Referring to FIG. 4 , a process of sending and receiving link signals between multiple active pens and the panel 110 according to an embodiment is shown. Hereinafter, an example is shown in which three active pens 10-1, 10-2, and 10-3 touch or approach the panel 110, but the present invention is not limited thereto. In the search step, the touch sensing device can identify the presence of the three active pens 10-1, 10-2, and 10-3. In the sensing step, the touch sensing device can receive downlink link signals from the three active pens 10-1, 10-2, and 10-3.

在搜索步驟中，觸摸感測裝置的驅動電路可以將上行鏈路信號發送至多個主動式筆。驅動電路可以在不同的時間點獨立地針對多個主動式筆發送上行鏈路信號。例如，驅動電路可以在第一時間間隔將第一上行鏈路信號UL1發送至第一主動式筆10-1，可以在第二時間間隔將第二上行鏈路信號UL2發送至第二主動式筆10-2，並且可以在第三時間間隔將第三上行鏈路信號UL3發 送至第三主動式筆10-3。在這種情況下，驅動電路可以在不同的時間點發送第一至第三上行鏈路信號UL1至UL3，使得第一至第三上行鏈路信號UL1至UL3不重疊。 In the search step, the driver circuit of the touch sensing device may send an uplink signal to multiple active pens. The driver circuit may send uplink signals to multiple active pens independently at different time points. For example, the driver circuit may send a first uplink signal UL1 to the first active pen 10-1 at a first time interval, may send a second uplink signal UL2 to the second active pen 10-2 at a second time interval, and may send a third uplink signal UL3 to the third active pen 10-3 at a third time interval. In this case, the driver circuit may send the first to third uplink signals UL1 to UL3 at different time points so that the first to third uplink signals UL1 to UL3 do not overlap.

此外，觸摸感測裝置的感測電路可以藉由等待經由觸摸電極接收與上行鏈路信號相對應的下行鏈路信號來搜索多個主動式筆。在搜索多個主動式筆時首次接收一個下行鏈路信號之後，感測電路可以持續從已發送該一個下行鏈路信號的一個主動式筆接收下一下行鏈路信號。可選地，在從另一主動式筆接收另一下行鏈路信號之後，感測電路可以持續從該另一主動式筆接收另一下行鏈路信號。在這種情況下，感測電路可以交替地從該一個主動式筆和該另一主動式筆接收下行鏈路信號。 In addition, the sensing circuit of the touch sensing device can search for multiple active pens by waiting to receive a downlink signal corresponding to the uplink signal via the touch electrode. After receiving a downlink signal for the first time when searching for multiple active pens, the sensing circuit can continue to receive the next downlink signal from an active pen that has sent the downlink signal. Optionally, after receiving another downlink signal from another active pen, the sensing circuit can continue to receive another downlink signal from the other active pen. In this case, the sensing circuit can alternately receive downlink signals from the one active pen and the other active pen.

在感測步驟中，感測電路可以在不同的時間點獨立地執行對多個主動式筆的搜索。例如，感測電路可以等待在第一時間間隔從第一主動式筆10-1接收第一下行鏈路信號DL1，可以等待在第二時間間隔從第二主動式筆10-2接收第二下行鏈路信號DL2，並且可以等待在第三時間間隔從第三主動式筆10-3接收第三下行鏈路信號DL3。在這種情況下，感測電路可以在不同的時間點接收第一下行鏈路信號DL1至第三下行鏈路信號DL3，使得第一下行鏈路信號DL1至第三下行鏈路信號DL3不重疊。例如，感測電路可以在不同的觸摸間隔接收第一下行鏈路信號DL1至第三下行鏈路信號DL3，使得第一下行鏈路信號DL1至第三下行鏈路信號DL3不重疊。 In the sensing step, the sensing circuit may independently perform a search for multiple active pens at different time points. For example, the sensing circuit may wait to receive a first downstream link signal DL1 from the first active pen 10-1 at a first time interval, may wait to receive a second downstream link signal DL2 from the second active pen 10-2 at a second time interval, and may wait to receive a third downstream link signal DL3 from the third active pen 10-3 at a third time interval. In this case, the sensing circuit may receive the first downstream link signal DL1 to the third downstream link signal DL3 at different time points, so that the first downstream link signal DL1 to the third downstream link signal DL3 do not overlap. For example, the sensing circuit can receive the first downlink signal DL1 to the third downlink signal DL3 at different touch intervals, so that the first downlink signal DL1 to the third downlink signal DL3 do not overlap.

為了在不同的時間點搜索多個主動式筆，感測電路可以在每幀中搜索多個主動式筆其中之一，或者可以在每幀中搜索所有多個主動式筆。感測電路可以使用在一個幀中集中搜索僅一個主動式筆的第一方法和在一個幀中搜索所有多個主動式筆的第二方法其中之一。 In order to search for multiple active pens at different time points, the sensing circuit may search for one of the multiple active pens in each frame, or may search for all of the multiple active pens in each frame. The sensing circuit may use one of a first method of intensively searching for only one active pen in one frame and a second method of searching for all of the multiple active pens in one frame.

當觸摸感測裝置接收到來自多個主動式筆其中之一的下行鏈路信號時，觸摸感測裝置可以持續與該一個主動式筆交換資料。如果觸摸感測裝置從任何時間點起未接收到下行鏈路信號，即，當從觸摸感測裝置釋放一個主動式筆時，觸摸感測裝置可以再次搜索多個主動式筆。即，觸摸感測裝置可以藉由再次將上行鏈路信號發送至多個主動式筆來重複以上處理。 When the touch sensing device receives a downlink signal from one of the multiple active pens, the touch sensing device may continue to exchange data with the one active pen. If the touch sensing device does not receive a downlink signal from any point in time, that is, when an active pen is released from the touch sensing device, the touch sensing device may search for multiple active pens again. That is, the touch sensing device may repeat the above process by sending an uplink signal to the multiple active pens again.

圖5是用於描述根據實施例的主動式筆的釋放的圖。 FIG. 5 is a diagram for describing the release of the active pen according to an embodiment.

參考圖5，示出釋放主動式筆10的處理。 Referring to FIG. 5 , the process of releasing the active pen 10 is shown.

在搜索步驟(搜索)中，觸摸感測裝置可以將上行鏈路信號UL發送至主動式筆10，以識別主動式筆10的存在。 In the search step (search), the touch sensing device may send an uplink signal UL to the active pen 10 to identify the presence of the active pen 10.

在感測步驟(感測)中，當主動式筆10接收上行鏈路信號UL並將相應的下行鏈路信號DL發送至觸摸感測裝置時，觸摸感測裝置可以藉由下行鏈路信號DL接收主動式筆10的資料。 In the sensing step (sensing), when the active pen 10 receives the uplink signal UL and sends the corresponding downlink signal DL to the touch sensing device, the touch sensing device can receive the data of the active pen 10 through the downlink signal DL.

在釋放步驟(釋放)中，可以停止觸摸感測裝置和主動式筆10之間的下行鏈路信號DL的通信。下行鏈路信號DL的通信的停止可能由於外部因素而發生。如果由於主動式筆10的使用者在輸入符號的情況下離開空間之後輸入另一符號，因此主動式筆10和面板110之間的距離增加，則可能切斷用於下行鏈路信號DL的通信，並且可能釋放主動式筆10。 In the release step (Release), the communication of the downlink signal DL between the touch sensing device and the active pen 10 may be stopped. The stop of the communication of the downlink signal DL may occur due to external factors. If the distance between the active pen 10 and the panel 110 increases because the user of the active pen 10 leaves the space while inputting a symbol and then inputs another symbol, the communication for the downlink signal DL may be cut off, and the active pen 10 may be released.

當釋放主動式筆10時，觸摸感測裝置可以將上行鏈路信號UL發送至主動式筆10，以識別主動式筆10的存在。觸摸感測裝置再次進入搜索步驟。 When the active pen 10 is released, the touch sensing device can send an uplink signal UL to the active pen 10 to identify the existence of the active pen 10. The touch sensing device enters the search step again.

圖6是用於描述根據實施例的觸摸感測裝置的感測的概念的圖。 FIG6 is a diagram for describing the concept of sensing of a touch sensing device according to an embodiment.

參考圖6，示出觸摸感測裝置140驅動面板110的多個觸摸電極TE以感測包括主動式筆或手指的物體的觸摸或接近的示例。觸摸感測裝置140可以針對各行驅動多個觸摸電極TE。 Referring to FIG. 6 , an example is shown in which the touch sensing device 140 drives the multiple touch electrodes TE of the panel 110 to sense the touch or approach of an object including an active pen or a finger. The touch sensing device 140 may drive the multiple touch electrodes TE for each row.

面板110中可以佈置多個觸摸電極TE。可以根據預定方法對多個觸摸電極TE進行分組和驅動。 A plurality of touch electrodes TE may be arranged in the panel 110. The plurality of touch electrodes TE may be grouped and driven according to a predetermined method.

可以以矩陣形式佈置多個觸摸電極TE。在一行中佈置的多個觸摸電極TE可以被分組為一組並被一起驅動。在該圖中，在各通道中可以包括四個觸摸電極TE。總共八個通道CH1至CH8和總共三十二個觸摸電極TE可以佈置在面板110中。當以形成一行的方式從各通道中選擇觸摸電極TE時，所選擇的多個觸摸電極TE可以形成一組。例如，第二組(組2)可以是八個通道CH1至CH8的第二行中佈置的一組觸摸電極TE(即，圖6中的陰影觸摸電極)。 A plurality of touch electrodes TE may be arranged in a matrix form. A plurality of touch electrodes TE arranged in a row may be grouped into one group and driven together. In the figure, four touch electrodes TE may be included in each channel. A total of eight channels CH1 to CH8 and a total of thirty-two touch electrodes TE may be arranged in the panel 110. When touch electrodes TE are selected from each channel in a manner to form a row, the selected plurality of touch electrodes TE may form a group. For example, the second group (Group 2) may be a group of touch electrodes TE arranged in the second row of eight channels CH1 to CH8 (i.e., the shaded touch electrodes in FIG. 6).

觸摸感測裝置140可以包括一系列MUX。觸摸感測裝置140可以藉由一系列MUX從各通道中選擇觸摸電極TE，並且可以驅動所選擇的觸摸電極TE。觸摸感測裝置140可以針對各組驅動形成一個行的多個觸摸電極TE。 The touch sensing device 140 may include a series of MUXs. The touch sensing device 140 may select a touch electrode TE from each channel through a series of MUXs, and may drive the selected touch electrode TE. The touch sensing device 140 may drive a plurality of touch electrodes TE forming a row for each group.

例如，一系列MUX可以選擇八個通道CH1至CH8的第二行，即，第二組(組2)的多個觸摸電極TE。觸摸感測裝置140可以感測第二行中的物體的觸摸或接近。 For example, a series of MUXs can select the second row of eight channels CH1 to CH8, that is, a plurality of touch electrodes TE of the second group (Group 2). The touch sensing device 140 can sense the touch or proximity of an object in the second row.

圖7是用於描述根據實施例的觸摸感測裝置的局部感測的圖。 FIG7 is a diagram for describing local sensing of a touch sensing device according to an embodiment.

參考圖7，觸摸感測裝置140可以進行局部感測。局部感測可以意味著觸摸感測裝置140在預定時間段期間持續驅動面板110的預定區域。由觸摸感測裝置140持續驅動的面板110的預定區域可以被命名為局部感測區域(LSA)。具體地，當感測主動式筆時，觸摸感測裝置140可以僅在LSA中持續進行上行鏈路信號的發送和下行鏈路信號的接收。 Referring to FIG. 7 , the touch sensing device 140 may perform local sensing. Local sensing may mean that the touch sensing device 140 continuously drives a predetermined area of the panel 110 during a predetermined time period. The predetermined area of the panel 110 continuously driven by the touch sensing device 140 may be named a local sensing area (LSA). Specifically, when sensing an active pen, the touch sensing device 140 may continuously transmit an uplink signal and receive a downlink signal only in the LSA.

在顯示裝置中，面板110的觸摸電極可以被分割為區域並由多個觸摸感測裝置140驅動。各觸摸感測裝置140可以藉由MUX選擇各區域中所佈置的觸摸電極，並且可以驅動所選擇的觸摸電極。 In the display device, the touch electrodes of the panel 110 may be divided into regions and driven by a plurality of touch sensing devices 140. Each touch sensing device 140 may select a touch electrode arranged in each region by means of a MUX, and may drive the selected touch electrode.

例如，面板110可以被分割為第一區域(區域1)至第三區域(區域3)。各觸摸感測裝置140可以僅驅動各區域中包括的觸摸電極。如圖7所示，各觸摸感測裝置140可以針對各行驅動觸摸電極。在圖7中，多個觸摸電極可以形成總共六個行(行1至行6)。各觸摸感測裝置140可以驅動第二、第四和第五行(行2、行4和行5)中包括的觸摸電極。 For example, the panel 110 may be divided into a first region (region 1) to a third region (region 3). Each touch sensing device 140 may drive only the touch electrodes included in each region. As shown in FIG. 7 , each touch sensing device 140 may drive the touch electrodes for each row. In FIG. 7 , a plurality of touch electrodes may form a total of six rows (rows 1 to 6). Each touch sensing device 140 may drive the touch electrodes included in the second, fourth, and fifth rows (rows 2, 4, and 5).

由多個觸摸感測裝置140獨立地驅動的面板110的區域可以形成LSA。例如，在第一區域至第三區域(區域1至區域3)的第二行(行2)中驅動的觸摸電極可以形成第一LSA(LSA1)。在第一區域至第三區域(區域1至區域3)的第四行和第五行(行4和行5)中驅動的觸摸電極可以形成第二LSA(LSA2)。 The regions of the panel 110 independently driven by the plurality of touch sensing devices 140 may form LSAs. For example, the touch electrodes driven in the second row (row 2) of the first to third regions (regions 1 to 3) may form a first LSA (LSA1). The touch electrodes driven in the fourth and fifth rows (rows 4 and 5) of the first to third regions (regions 1 to 3) may form a second LSA (LSA2).

此外，多個觸摸感測裝置140中的各觸摸感測裝置可以藉由驅動各區域中的不同行以各種形式形成LSA。即，LSA可以以不具有行形式的方式來變化。 In addition, each of the plurality of touch sensing devices 140 can form LSA in various forms by driving different rows in each region. That is, LSA can be varied in a manner that does not have a row form.

圖8是用於描述觸摸感測裝置的順序感測的示例性圖。 FIG8 is an exemplary diagram for describing sequential sensing of a touch sensing device.

參考圖8，觸摸感測裝置可以根據局部感測進行順序感測。順序感測可以意味著不管物體在面板110中的位置如何觸摸感測裝置都按預定順序驅動觸摸電極。具體地，在順序感測主動式筆的情況下，觸摸感測裝置可以在面板110的不存在主動式筆的區域中發送上行鏈路信號以識別主動式筆的存在。在下文中，描述觸摸感測裝置從第一行至最後一行順序驅動觸摸電極的示例。面板中的感測區域可以被指示為陰影區域。 Referring to FIG. 8 , the touch sensing device may perform sequential sensing based on local sensing. Sequential sensing may mean that the touch sensing device drives the touch electrode in a predetermined sequence regardless of the position of the object in the panel 110. Specifically, in the case of sequentially sensing the active pen, the touch sensing device may send an uplink signal in an area of the panel 110 where the active pen does not exist to identify the presence of the active pen. Hereinafter, an example is described in which the touch sensing device sequentially drives the touch electrode from the first row to the last row. The sensing area in the panel may be indicated as a shaded area.

例如，觸摸感測裝置可以藉由下行鏈路信號從主動式筆10接收資料。主動式筆10可能位於最後一行。面板110的多個觸摸電極可以形成總共六個行。觸摸感測裝置可以從第一行至第六行順序驅動觸摸電極。儘管主動式筆10位於最後一行中，但是觸摸感測裝置可能按預定順序從第一行至第六行順序驅動觸摸電極。 For example, the touch sensing device may receive data from the active pen 10 via a downlink signal. The active pen 10 may be located in the last row. The plurality of touch electrodes of the panel 110 may form a total of six rows. The touch sensing device may drive the touch electrodes sequentially from the first row to the sixth row. Although the active pen 10 is located in the last row, the touch sensing device may drive the touch electrodes sequentially from the first row to the sixth row in a predetermined order.

圖9是用於描述根據實施例的觸摸感測裝置的局部感測的示例性圖。 FIG9 is an exemplary diagram for describing local sensing of a touch sensing device according to an embodiment.

參考圖9，觸摸感測裝置可以針對兩個或更多個主動式筆進行局部感測。局部感測可以意味著觸摸感測裝置藉由考慮物體的位置來驅動面板110中的物體的位置處的觸摸電極或靠近該位置的觸摸電極。具體地，在針對主動式筆的局部感測的情況下，觸摸感測裝置可以在面板110的存在主動式筆的區域中接收下行鏈路信號。在下文中，描述觸摸感測裝置對兩個主動式筆進行局部感測的示例。面板中的感測區域可以被指示為陰影區域。 9, the touch sensing device may perform local sensing for two or more active pens. Local sensing may mean that the touch sensing device drives a touch electrode at or near the position of an object in the panel 110 by considering the position of the object. Specifically, in the case of local sensing for an active pen, the touch sensing device may receive a downlink signal in an area of the panel 110 where the active pen exists. Hereinafter, an example in which the touch sensing device performs local sensing for two active pens is described. The sensing area in the panel may be indicated as a shaded area.

例如，觸摸感測裝置可以藉由多個下行鏈路信號從第一主動式筆10-1和第二主動式筆10-2接收多個資料。第一主動式筆10-1可能位於第二行，而第二主動式筆10-2可能位於第五行。面板110的多個觸摸電極可以形成總共六個行。觸摸感測裝置可以基於第一主動式筆10-1和第二主動式筆10-2的位置來驅動觸摸電極。為了感測第一主動式筆10-1，觸摸感測裝置可以持續感測第二行。為了感測第二主動式筆10-2，觸摸感測裝置可以持續感測第五行。 For example, the touch sensing device may receive multiple data from the first active pen 10-1 and the second active pen 10-2 via multiple downlink signals. The first active pen 10-1 may be located in the second row, and the second active pen 10-2 may be located in the fifth row. The multiple touch electrodes of the panel 110 may form a total of six rows. The touch sensing device may drive the touch electrodes based on the positions of the first active pen 10-1 and the second active pen 10-2. To sense the first active pen 10-1, the touch sensing device may continue to sense the second row. To sense the second active pen 10-2, the touch sensing device may continue to sense the fifth row.

即使主動式筆在面板110中移動，觸摸感測裝置也可以跟蹤主動式筆的位置，並且可以持續驅動在主動式筆的位置處的觸摸電極或靠近該位置的觸摸電極。 Even if the active pen moves in the panel 110, the touch sensing device can track the position of the active pen and can continue to drive the touch electrode at the position of the active pen or the touch electrode close to the position.

例如，即使第一主動式筆10-1從第二行移動到第三行，觸摸感測裝置也可以藉由驅動第三行來感測第一主動式筆10-1。即使第二主動式筆10-2從第五行移動到第六行，觸摸感測裝置也可以藉由驅動第六行來感測第二主動式筆10-2。 For example, even if the first active pen 10-1 moves from the second row to the third row, the touch sensing device can sense the first active pen 10-1 by driving the third row. Even if the second active pen 10-2 moves from the fifth row to the sixth row, the touch sensing device can sense the second active pen 10-2 by driving the sixth row.

如上所述，觸摸感測裝置可以基於包括第一主動式筆的位置的第一局部感測區域來驅動觸摸電極，並且可以基於包括第二主動式筆的位置的第二局部感測區域來同時地驅動觸摸電極。 As described above, the touch sensing device may drive the touch electrode based on a first local sensing area including the position of a first active pen, and may simultaneously drive the touch electrode based on a second local sensing area including the position of a second active pen.

在這種情況下，觸摸感測裝置可以對各主動式筆進行局部感測，除非與各主動式筆的通信停止。這種情況可以包括使用者藉由向觸摸面板輸入連續路徑而不釋放任何一個主動式筆的情況。如果使用者藉由向觸摸面板輸入不連續路徑來釋放任何一個主動式筆，則觸摸感測裝置可以恢復搜索主動式筆。這樣的搜索也是局部地進行的，並且將在後面描述。 In this case, the touch sensing device can perform local sensing of each active pen unless the communication with each active pen stops. This situation may include a situation where the user does not release any active pen by inputting a continuous path to the touch panel. If the user releases any active pen by inputting a discontinuous path to the touch panel, the touch sensing device can resume searching for the active pen. Such a search is also performed locally and will be described later.

圖10是用於描述觸摸感測裝置的順序搜索的示例性圖。 FIG. 10 is an exemplary diagram for describing a sequential search of a touch sensing device.

參考圖10，觸摸感測裝置可以根據順序感測來進行順序搜索。搜索是針對物體中的主動式筆，並且可以意味著觸摸感測裝置持續向主動式筆發送上行鏈路信號，或者等待從主動式筆接收下行鏈路信號。此外，搜索是在感測到主動式筆之前識別主動式筆的存在的處理，並且還可以應用於在感測期間主動式筆與面板110分離，即主動式筆被釋放的情況。因此，如果在搜索期間主動式筆將下行鏈路信號發送至觸摸感測裝置並且觸摸感測裝置重新開始接收下行鏈路信號，則觸摸感測裝置可以恢復對主動式筆的感測。當識別出主動式筆的存在時，觸摸感測裝置還可以獲取主動式筆的位置。 Referring to Figure 10, the touch sensing device can perform a sequential search based on sequential sensing. The search is for the active pen in the object, and may mean that the touch sensing device continues to send an uplink signal to the active pen, or waits to receive a downlink signal from the active pen. In addition, the search is a process of identifying the presence of the active pen before the active pen is sensed, and can also be applied to the case where the active pen is separated from the panel 110 during sensing, that is, the active pen is released. Therefore, if the active pen sends a downlink signal to the touch sensing device during the search and the touch sensing device restarts to receive the downlink signal, the touch sensing device can resume sensing of the active pen. When the presence of the active pen is recognized, the touch sensing device can also obtain the position of the active pen.

順序搜索可以意味著不管主動式筆在面板110中的位置如何觸摸感測裝置都按預定順序藉由觸摸電極發送上行鏈路信號。即，觸摸感測裝置可以藉由上行鏈路信號的發送來識別主動式筆的存在。觸摸感測裝置可以即使在面板110中的不存在主動式筆的區域中也發送上行鏈路信號以識別主動式筆的存在。在下文中，描述釋放任何一個主動式筆並且觸摸感測裝置從第一行至最後一行順序發送上行鏈路信號的示例。面板中的搜索區域可以被指示為陰影區域。 Sequential search may mean that the touch sensing device transmits an uplink signal through the touch electrode in a predetermined order regardless of the position of the active pen in the panel 110. That is, the touch sensing device may identify the presence of the active pen by transmitting the uplink signal. The touch sensing device may transmit an uplink signal to identify the presence of the active pen even in an area in the panel 110 where the active pen does not exist. Hereinafter, an example is described in which any one of the active pens is released and the touch sensing device transmits an uplink signal sequentially from the first row to the last row. The search area in the panel may be indicated as a shaded area.

例如，面板110的多個觸摸電極可以形成總共六個行。當觸摸感測裝置感測第五行中的主動式筆10時，主動式筆10可能被釋放。在圖10中，主動式筆10被釋放的點可以被指示為R。即使主動式筆10已經在第五行中被釋 放，觸摸感測裝置也可能從第一行起進行搜索。觸摸感測裝置可能從第一行至第六行順序發送上行鏈路信號。 For example, the plurality of touch electrodes of the panel 110 may form a total of six rows. When the touch sensing device senses the active pen 10 in the fifth row, the active pen 10 may be released. In FIG. 10 , the point at which the active pen 10 is released may be indicated as R. Even if the active pen 10 has been released in the fifth row, the touch sensing device may search from the first row. The touch sensing device may send uplink signals sequentially from the first row to the sixth row.

圖11是用於描述根據實施例的觸摸感測裝置的局部搜索的示例性圖。 FIG. 11 is an exemplary diagram for describing a local search of a touch sensing device according to an embodiment.

參考圖11，觸摸感測裝置可以根據順序搜索來進行局部搜索。局部搜索可以意味著觸摸感測裝置藉由考慮主動式筆在面板110中的位置，經由主動式筆的位置處的觸摸電極或靠近該位置的觸摸電極來發送上行鏈路信號。在這種情況下，主動式筆的位置可以是釋放主動式筆時最終感測到主動式筆的點。 Referring to FIG. 11 , the touch sensing device may perform a local search according to a sequential search. The local search may mean that the touch sensing device sends an uplink signal via a touch electrode at or near the location of the active pen by considering the location of the active pen in the panel 110. In this case, the location of the active pen may be the point where the active pen is finally sensed when the active pen is released.

觸摸感測裝置可以感測一個觸摸區域中的主動式筆10的觸摸或接近。當該一個觸摸區域中的對主動式筆10的感測停止時，觸摸感測裝置可以在該一個觸摸區域中或其附近進行搜索以檢查主動式筆10的存在。 The touch sensing device can sense the touch or approach of the active pen 10 in one touch area. When the sensing of the active pen 10 in the one touch area stops, the touch sensing device can search in or near the one touch area to check for the presence of the active pen 10.

例如，面板110的多個觸摸電極可以形成總共六個行。當觸摸感測裝置感測第五行中的主動式筆10時，主動式筆10可能被釋放。在圖11中，主動式筆10被釋放的點可以被指示為R。當在第五行中釋放主動式筆10時，觸摸感測裝置可以搜索包括主動式筆10被釋放的點的第五行。 For example, the plurality of touch electrodes of the panel 110 may form a total of six rows. When the touch sensing device senses the active pen 10 in the fifth row, the active pen 10 may be released. In FIG. 11 , the point at which the active pen 10 is released may be indicated as R. When the active pen 10 is released in the fifth row, the touch sensing device may search for the fifth row including the point at which the active pen 10 is released.

這樣的局部搜索也可以等同地應用於在感測多個主動式筆時釋放一個主動式筆的情況。在觸摸感測裝置感測第一觸摸區域中的第一主動式筆的觸摸或接近並且感測第二觸摸區域中的第二主動式筆的觸摸或接近的情況下，當第一觸摸區域中的第一主動式筆的感測停止時，觸摸感測裝置可以在該第一觸摸區域中或其附近進行搜索以檢查第一主動式筆的存在。 Such a local search can also be equally applied to the case where one active pen is released when multiple active pens are sensed. In the case where the touch sensing device senses the touch or proximity of the first active pen in the first touch area and senses the touch or proximity of the second active pen in the second touch area, when the sensing of the first active pen in the first touch area stops, the touch sensing device can search in or near the first touch area to check for the presence of the first active pen.

在這種情況下，當第二觸摸區域中的第二主動式筆的感測也停止時，觸摸感測裝置可以進行第一觸摸區域中的對第一主動式筆的搜索和第二觸摸區域中的對第二主動式筆的搜索這兩者。 In this case, when the sensing of the second active pen in the second touch area is also stopped, the touch sensing device can perform both the search for the first active pen in the first touch area and the search for the second active pen in the second touch area.

此外，觸摸感測裝置可以可變地調整搜索區域。例如，觸摸感測裝置還可以搜索靠近包括釋放主動式筆10的位置的行的行。觸摸感測裝置可以驅動第四行和第五行，可以驅動第五行和第六行，或者可以驅動第四行至第六行。 In addition, the touch sensing device can variably adjust the search area. For example, the touch sensing device can also search for rows close to the row including the position where the active pen 10 is released. The touch sensing device can drive the fourth row and the fifth row, can drive the fifth row and the sixth row, or can drive the fourth row to the sixth row.

圖12是用於描述根據實施例的在搜索和感測主動式筆的情況下針對各觸摸間隔僅從一個主動式筆接收的資料的示例性圖。圖13是用於描述根據實施例的在搜索和感測主動式筆的情況下針對各觸摸間隔從多個主動式筆接收的資料的示例性圖。 FIG. 12 is an exemplary diagram for describing data received from only one active pen for each touch interval in the case of searching and sensing an active pen according to an embodiment. FIG. 13 is an exemplary diagram for describing data received from multiple active pens for each touch interval in the case of searching and sensing an active pen according to an embodiment.

觸摸感測裝置可以在每幀中的多個觸摸間隔內從主動式筆接收下行鏈路信號，並且可以從下行鏈路信號接收主動式筆的資料。 The touch sensing device may receive a downlink signal from the active pen in a plurality of touch intervals in each frame, and may receive data of the active pen from the downlink signal.

觸摸感測裝置的感測電路可以接收同步信號SYNC，並且可以藉由同步信號SYNC識別多個觸摸間隔。在觸摸間隔內，主動式筆可以將下行鏈路信號發送至觸摸電極。觸摸感測裝置可以從觸摸電極接收下行鏈路信號。 The sensing circuit of the touch sensing device can receive the synchronization signal SYNC, and can identify multiple touch intervals through the synchronization signal SYNC. In the touch interval, the active pen can send a downlink signal to the touch electrode. The touch sensing device can receive the downlink signal from the touch electrode.

同步信號SYNC可以一起確定觸摸間隔和輸出圖像資料的顯示間隔。同步信號SYNC可以包括時分信號或觸摸同步信號以定義觸摸間隔。在該圖中，顯示間隔可以被指示為D，並且觸摸間隔可以被指示為T。 The synchronization signal SYNC may determine the touch interval and the display interval of the output image data together. The synchronization signal SYNC may include a time division signal or a touch synchronization signal to define the touch interval. In the figure, the display interval may be indicated as D, and the touch interval may be indicated as T.

觸摸間隔可以意味著一個幀的從一部分行輸出圖像資料的時間與從下一部分行輸出圖像資料的時間之間的時間段。使用這種方法產生的觸摸間隔可以被稱為長水平消隱(LHB)。 The touch interval may mean a time period between the time when image data is output from a part of a line and the time when image data is output from the next part of a line of a frame. The touch interval generated using this method may be referred to as long horizontal blanking (LHB).

LHB可以被共同分配並且用於觸摸感測裝置搜索或感測主動式筆。下文中描述的搜索和感測可以是包括局部搜索和局部感測的概念。例如，如果將一個LHB分配至並用於搜索多個主動式筆其中之一，則該一個LHB可以用於感測該一個主動式筆而無需任何改變。觸摸感測裝置可以藉由在該一個 LHB內發送上行鏈路信號並等待接收下行鏈路信號來搜索該一個主動式筆，並且可以以相同的方式在該一個LHB內從該一個主動式筆接收下行鏈路信號。 LHBs may be collectively allocated and used for a touch sensing device to search for or sense an active pen. The search and sensing described below may be concepts including local search and local sensing. For example, if one LHB is allocated to and used to search for one of multiple active pens, the one LHB may be used to sense the one active pen without any change. The touch sensing device may search for the one active pen by sending an uplink signal in the one LHB and waiting to receive a downlink signal, and may receive a downlink signal from the one active pen in the same manner in the one LHB.

觸摸感測裝置可以一起感測主動式筆和手指。因此，可以在LHB內接收主動式筆的資料並且還可以接收手指的電容變化資料F。主動式筆的資料可以包括用於發起通信的信標、主動式筆的位置POS、主動式筆的傾斜TILT、主動式筆的狀態資訊DATA等。 The touch sensing device can sense the active pen and the finger together. Therefore, the data of the active pen can be received in the LHB and the capacitance change data F of the finger can also be received. The data of the active pen can include a beacon for initiating communication, the position POS of the active pen, the tilt TILT of the active pen, the status information DATA of the active pen, etc.

圖12示出在搜索和感測主動式筆的情況下針對各觸摸間隔僅從一個主動式筆接收的資料。 Figure 12 shows the data received from only one active pen for each touch interval in the case of searching and sensing the active pen.

例如，如果觸摸感測裝置僅感測到第一主動式筆(筆1)(筆1感測)，則第一主動式筆(筆1)可以將信標(BEACON)、主動式筆的位置(POS)、主動式筆的傾斜(TILT)、主動式筆的狀態資訊(DATA)在16個LHB中藉由下行鏈路信號發送至觸摸感測裝置。此外，第一主動式筆(筆1)可以在一些觸摸間隔內不工作，並且可以不與觸摸感測裝置交換信號(MUTE)。 For example, if the touch sensing device only senses the first active pen (Pen 1) (Pen 1 sensing), the first active pen (Pen 1) can send the beacon (BEACON), the position of the active pen (POS), the tilt of the active pen (TILT), and the status information of the active pen (DATA) to the touch sensing device in 16 LHBs via downlink signals. In addition, the first active pen (Pen 1) may not work in some touch intervals and may not exchange signals with the touch sensing device (MUTE).

即使在搜索一個主動式筆的步驟中，一個幀的LHB也可以專門僅用於一個主動式筆。在這種情況下，觸摸感測裝置在一個幀的LHB中發送上行鏈路信號，並且等待從該一個主動式筆接收下行鏈路信號。 Even in the step of searching for an active pen, one frame of LHB may be dedicated to only one active pen. In this case, the touch sensing device sends an uplink signal in one frame of LHB and waits to receive a downlink signal from the one active pen.

圖13示出在搜索和感測主動式筆的情況下針對各觸摸間隔從所有多個主動式筆接收的資料。 FIG. 13 shows the data received from all multiple active pens for each touch interval in the case of searching and sensing the active pens.

例如，如果觸摸感測裝置感測第一主動式筆(筆1)(筆1感測)並同時感測第二主動式筆(筆2)(筆2感測)，則第一主動式筆(筆1)和第二主動式筆(筆2)各自可以將信標(BEACON)、主動式筆的位置(POS)、主動式筆的傾斜(TILT)、主動式筆的狀態資訊(DATA)在16個LHB中藉由下行鏈路信號發送至觸摸感測裝置。此外，第一主動式筆(筆1)或第二主動式筆(筆2)可以在一些觸摸間隔內不操作，並且可以不與觸摸感測裝置交換信號(MUTE)。第一主動式筆(筆1)或第二主 動式筆(筆2)的沉默狀態可以針對一個幀的各觸摸間隔而交替，這將在後面描述。 For example, if the touch sensing device senses the first active pen (Pen 1) (Pen 1 sensing) and senses the second active pen (Pen 2) (Pen 2 sensing) at the same time, the first active pen (Pen 1) and the second active pen (Pen 2) can each send a beacon (BEACON), the position of the active pen (POS), the tilt of the active pen (TILT), and the status information of the active pen (DATA) to the touch sensing device in 16 LHBs through downlink signals. In addition, the first active pen (Pen 1) or the second active pen (Pen 2) may not operate in some touch intervals and may not exchange signals with the touch sensing device (MUTE). The silent state of the first active pen (Pen 1) or the second active pen (Pen 2) may alternate for each touch interval of a frame, which will be described later.

此外，觸摸感測裝置可以使搜索方法多樣化，以使得在相同的觸摸間隔內不搜索多個主動式筆。觸摸感測裝置可以使感測方法多樣化，以使得在相同的觸摸間隔內不感測多個主動式筆。即，在一個觸摸間隔內僅可以搜索或感測一個主動式筆。例如，觸摸感測裝置可以在每幀中交替地搜索或感測第一主動式筆(筆1)和第二主動式筆(筆2)。可選地，觸摸感測裝置可以在一個幀中搜索或感測第一主動式筆(筆1)，並且可以在另一幀中搜索或感測第二主動式筆(筆2)。在這種情況下，第二主動式筆(筆2)可以在該一個幀中處於沉默狀態，並且第一主動式筆(筆1)可以在該另一幀中處於沉默狀態。 In addition, the touch sensing device may diversify the search method so that multiple active pens are not searched within the same touch interval. The touch sensing device may diversify the sensing method so that multiple active pens are not sensed within the same touch interval. That is, only one active pen may be searched or sensed within one touch interval. For example, the touch sensing device may alternately search or sense the first active pen (Pen 1) and the second active pen (Pen 2) in each frame. Alternatively, the touch sensing device may search or sense the first active pen (Pen 1) in one frame, and may search or sense the second active pen (Pen 2) in another frame. In this case, the second active pen (Pen 2) can be in a silent state in the one frame, and the first active pen (Pen 1) can be in a silent state in the other frame.

即使在搜索多個主動式筆的步驟中，也可以專門將一個幀的LHB僅用於多個主動式筆中被分配了該LHB的主動式筆。即，在搜索步驟中，僅特定的主動式筆可以使用特定的LHB。在這種情況下，觸摸感測裝置針對一個幀的各LHB發送不同的上行鏈路信號，並且等待從多個主動式筆接收不同的下行鏈路信號。 Even in the step of searching for multiple active pens, the LHB of one frame can be exclusively used only for the active pen to which the LHB is assigned among the multiple active pens. That is, in the search step, only a specific active pen can use a specific LHB. In this case, the touch sensing device sends different uplink signals for each LHB of one frame, and waits to receive different downlink signals from the multiple active pens.

儘管釋放了一個主動式筆並且再次搜索或感測被釋放的該一個主動式筆，但是觸摸感測裝置可以在與釋放該一個主動式筆之前的相同LHB內與該一個主動式筆交換信號。 Although one active pen is released and the released one active pen is searched or sensed again, the touch sensing device may exchange signals with the one active pen within the same LHB as before the one active pen was released.

例如，在釋放並再次感測第一主動式筆(筆1)時，如圖12所示，觸摸感測裝置可以將觸摸間隔(例如，LHB)分配至第一主動式筆(筆1)。觸摸感測裝置在釋放第一主動式筆(筆1)之後和之前從第一主動式筆(筆1)接收下行鏈路信號以感測第一主動式筆(筆1)的方法可以相同。 For example, when the first active pen (pen 1) is released and sensed again, as shown in FIG12, the touch sensing device may assign a touch interval (e.g., LHB) to the first active pen (pen 1). The method by which the touch sensing device receives a downlink signal from the first active pen (pen 1) to sense the first active pen (pen 1) before and after releasing the first active pen (pen 1) may be the same.

此外，儘管釋放了多個主動式筆中的一個主動式筆並且再次搜索或感測被釋放的至少該一個主動式筆，但是觸摸感測裝置可以在與釋放多個主動式筆之前的相同LHB內與多個主動式筆交換信號。 Furthermore, although one active pen among the multiple active pens is released and at least the one active pen released is searched or sensed again, the touch sensing device can exchange signals with the multiple active pens within the same LHB as before the multiple active pens were released.

例如，如圖13所示，當釋放並再次感測第一主動式筆(筆1)和第二主動式筆(筆2)時，觸摸感測裝置可以將觸摸間隔(例如，LHB)分配至第一主動式筆(筆1)和第二主動式筆(筆2)。觸摸感測裝置在釋放第一主動式筆(筆1)和第二主動式筆(筆2)之前和之後從第一主動式筆(筆1)和第二主動式筆(筆2)接收不同的下行鏈路信號以感測第一主動式筆(筆1)和第二主動式筆(筆2)的方法可以相同。 For example, as shown in FIG13, when the first active pen (pen 1) and the second active pen (pen 2) are released and sensed again, the touch sensing device may allocate a touch interval (e.g., LHB) to the first active pen (pen 1) and the second active pen (pen 2). The method by which the touch sensing device receives different downlink signals from the first active pen (pen 1) and the second active pen (pen 2) before and after releasing the first active pen (pen 1) and the second active pen (pen 2) to sense the first active pen (pen 1) and the second active pen (pen 2) may be the same.

在這種情況下，觸摸感測裝置可以將LHB均勻地分配至第一主動式筆(筆1)和第二主動式筆(筆2)。觸摸感測裝置接收第一主動式筆(筆1)的下行鏈路信號和第二主動式筆(筆2)的下行鏈路信號這兩者，但是可以交替地接收下行鏈路信號。 In this case, the touch sensing device can evenly distribute the LHB to the first active pen (Pen 1) and the second active pen (Pen 2). The touch sensing device receives both the downlink signal of the first active pen (Pen 1) and the downlink signal of the second active pen (Pen 2), but can receive the downlink signal alternately.

例如，觸摸感測裝置可以使用第五至第七LHB來搜索和感測第二主動式筆(筆2)。相反，觸摸感測裝置可以使用第九至第十一LHB來搜索和感測第一主動式筆(筆1)。在第五至第七LHB中，當第二主動式筆(筆2)將主動式筆的位置(POS)和主動式筆的狀態資訊(DATA)發送到觸摸感測裝置時，第一主動式筆(筆1)可能處於沉默狀態(在該沉默狀態下第一主動式筆(筆1)不發送任何信號)，並且可能不與觸摸感測裝置一起進行任何操作。相反，在第九至第十一LHB中，當第一主動式筆(筆1)將主動式筆的位置(POS)和主動式筆的狀態資訊(DATA)發送至觸摸感測裝置時，第二主動式筆(筆2)可能處於沉默狀態(在該沉默狀態下第二主動式筆(筆2)不發送任何信號)，並且可能不與觸摸感測裝置一起進行任何操作。 For example, the touch sensing device may use the fifth to seventh LHBs to search for and sense the second active pen (Pen 2). Conversely, the touch sensing device may use the ninth to eleventh LHBs to search for and sense the first active pen (Pen 1). In the fifth to seventh LHBs, when the second active pen (Pen 2) sends the position (POS) of the active pen and the status information (DATA) of the active pen to the touch sensing device, the first active pen (Pen 1) may be in a silent state (in which the first active pen (Pen 1) does not send any signal) and may not perform any operation with the touch sensing device. In contrast, in the ninth to eleventh LHBs, when the first active pen (Pen 1) transmits the position (POS) of the active pen and the status information (DATA) of the active pen to the touch sensing device, the second active pen (Pen 2) may be in a silent state (in which the second active pen (Pen 2) does not transmit any signal) and may not perform any operation with the touch sensing device.

可選地，觸摸感測裝置可以將各幀的LHB專門分配至多個活動筆中的任何一個。例如，觸摸感測裝置可以專門將各幀的LHB分配至第一主動式筆(筆1)和第二主動式筆(筆2)中的任何一個。觸摸感測裝置可以在一個幀中向第一主動式筆(筆1)發送上行鏈路信號，並且可以在另一幀中向第二主動式筆(筆2)發送上行鏈路信號。觸摸感測裝置可以在一個幀中僅從第一主動式筆(筆1)接收下行鏈路信號，並且可以在另一幀中僅從第二主動式筆(筆2)接收下行鏈路信號。 Optionally, the touch sensing device may allocate the LHB of each frame exclusively to any one of a plurality of active pens. For example, the touch sensing device may allocate the LHB of each frame exclusively to any one of the first active pen (Pen 1) and the second active pen (Pen 2). The touch sensing device may send an uplink signal to the first active pen (Pen 1) in one frame, and may send an uplink signal to the second active pen (Pen 2) in another frame. The touch sensing device may receive a downlink signal only from the first active pen (Pen 1) in one frame, and may receive a downlink signal only from the second active pen (Pen 2) in another frame.

相關申請的交叉引用： Cross references to related applications:

本申請要求於2020年2月21日提交的韓國專利申請10-2020-0021327的優先權，出於所有目的而將其全部內容藉由援引加入本文，如同在這裡全面闡述一樣。 This application claims priority to Korean Patent Application No. 10-2020-0021327 filed on February 21, 2020, the entire contents of which are incorporated herein by reference for all purposes as if fully set forth herein.

10:主動式筆 20:物體 100:顯示裝置 110:面板 120:資料驅動裝置 130:閘極驅動裝置 140:觸摸感測裝置 150:資料處理裝置 160:主機 DCS:資料控制信號 DL:下行鏈路信號 GCS:閘極控制信號 GL:閘極線 P:像素 PCS:面板控制信號 TCS:觸摸控制信號 TE:觸摸電極 10: Active pen 20: Object 100: Display device 110: Panel 120: Data driver 130: Gate driver 140: Touch sensor 150: Data processing device 160: Host DCS: Data control signal DL: Downlink signal GCS: Gate control signal GL: Gate line P: Pixel PCS: Panel control signal TCS: Touch control signal TE: Touch electrode

Claims (15)

一種觸摸感測裝置，用於使用觸摸電極感測至少一個主動式筆，所述觸摸感測裝置包括： 驅動電路，其被配置為發送上行鏈路信號；以及 感測電路，其被配置為接收與所述上行鏈路信號相對應的下行鏈路信號， 其中，在經由第一觸摸電極從第一主動式筆的第一下行鏈路信號的接收停止的情況下，所述感測電路經由所述第一觸摸電極或靠近所述第一觸摸電極的觸摸電極開始搜索所述第一主動式筆。A touch sensing device for sensing at least one active pen using a touch electrode, the touch sensing device comprising: a driving circuit configured to send an uplink signal; and a sensing circuit configured to receive a downlink signal corresponding to the uplink signal, wherein, when reception of a first downlink signal from a first active pen via a first touch electrode stops, the sensing circuit starts searching for the first active pen via the first touch electrode or a touch electrode close to the first touch electrode. 根據請求項1所述的觸摸感測裝置，其中，在經由所述第一觸摸電極的所述第一下行鏈路信號的接收停止的情況下，所述驅動電路經由所述第一觸摸電極或靠近所述第一觸摸電極的觸摸電極來發送第一上行鏈路信號以搜索所述第一主動式筆。A touch sensing device according to claim 1, wherein, when reception of the first downlink signal via the first touch electrode stops, the driving circuit sends a first uplink signal via the first touch electrode or a touch electrode close to the first touch electrode to search for the first active pen. 根據請求項1所述的觸摸感測裝置，其中，所述感測電路重新開始經由所述第一觸摸電極或靠近所述第一觸摸電極的觸摸電極來接收所述第一下行鏈路信號，並且恢復感測所述第一主動式筆的觸摸或接近。A touch sensing device according to claim 1, wherein the sensing circuit restarts receiving the first downlink signal via the first touch electrode or the touch electrode close to the first touch electrode, and resumes sensing the touch or proximity of the first active pen. 根據請求項1所述的觸摸感測裝置，其中，所述感測電路接收用於定義顯示間隔和觸摸間隔的同步信號，並且在一些觸摸間隔內接收所述第一下行鏈路信號以感測所述第一主動式筆。A touch sensing device according to claim 1, wherein the sensing circuit receives a synchronization signal for defining a display interval and a touch interval, and receives the first downlink signal within some touch intervals to sense the first active pen. 根據請求項1所述的觸摸感測裝置，其中，所述驅動電路將第二上行鏈路信號發送至第二主動式筆，以及所述感測電路經由第二觸摸電極從所述第二主動式筆接收與所述第二上行鏈路信號相對應的第二下行鏈路信號，並且在經由所述第二觸摸電極的所述第二下行鏈路信號的接收停止的情況下，藉由等待經由所述第二觸摸電極或靠近所述第二觸摸電極的觸摸電極接收所述第二下行鏈路信號，來開始搜索所述第二主動式筆。A touch sensing device according to claim 1, wherein the drive circuit sends a second uplink signal to a second active pen, and the sensing circuit receives a second downlink signal corresponding to the second uplink signal from the second active pen via a second touch electrode, and when the reception of the second downlink signal via the second touch electrode stops, the search for the second active pen is started by waiting for the reception of the second downlink signal via the second touch electrode or a touch electrode close to the second touch electrode. 根據請求項5所述的觸摸感測裝置，其中，所述感測電路在每個幀內感測所述第一主動式筆和所述第二主動式筆這兩者。A touch sensing device according to claim 5, wherein the sensing circuit senses both the first active pen and the second active pen within each frame. 根據請求項6所述的觸摸感測裝置，其中，所述感測電路接收用於定義顯示間隔和觸摸間隔的同步信號，以及在一個幀的一些觸摸間隔內感測所述第一主動式筆，並且在該一個幀的其它觸摸間隔內感測所述第二主動式筆。A touch sensing device according to claim 6, wherein the sensing circuit receives a synchronization signal for defining a display interval and a touch interval, and senses the first active pen in some touch intervals of a frame, and senses the second active pen in other touch intervals of the frame. 根據請求項1所述的觸摸感測裝置，其中，所述驅動電路將觸摸驅動信號發送至所述觸摸電極，並且所述感測電路響應於所述觸摸電極針對所述觸摸驅動信號的回應信號來感測物體對面板的觸摸或接近。According to the touch sensing device of claim 1, the driving circuit sends a touch driving signal to the touch electrode, and the sensing circuit senses the touch or proximity of the object to the panel in response to a response signal of the touch electrode to the touch driving signal. 根據請求項1所述的觸摸感測裝置，其中，在預定時間中未接收到所述第一下行鏈路信號的情況下，所述感測電路開始搜索所述第一主動式筆。A touch sensing device according to claim 1, wherein when the first downlink signal is not received within a predetermined time, the sensing circuit starts searching for the first active pen. 一種觸摸感測系統，用於感測多個主動式筆，所述觸摸感測系統包括： 面板，其包括第一觸摸區域和第二觸摸區域；以及 觸摸感測裝置，其被配置為感測所述第一觸摸區域中的第一主動式筆的觸摸或接近，並且感測所述第二觸摸區域中的第二主動式筆的觸摸或接近， 其中，在所述第一觸摸區域中的所述第一主動式筆的感測停止的情況下，所述觸摸感測裝置在所述第一觸摸區域中或在所述第一觸摸區域的附近進行搜索以檢查所述第一主動式筆的存在。A touch sensing system for sensing multiple active pens, the touch sensing system comprising: a panel comprising a first touch area and a second touch area; and a touch sensing device configured to sense the touch or approach of a first active pen in the first touch area, and sense the touch or approach of a second active pen in the second touch area, wherein, when the sensing of the first active pen in the first touch area stops, the touch sensing device searches in the first touch area or in the vicinity of the first touch area to check for the presence of the first active pen. 根據請求項10所述的觸摸感測系統，其中，在所述第二觸摸區域中的所述第二主動式筆的感測停止的情況下，所述觸摸感測裝置進行所述第一觸摸區域中所述第一主動式筆的搜索和所述第二觸摸區域中所述第二主動式筆的搜索這兩者。A touch sensing system according to claim 10, wherein, when sensing of the second active pen in the second touch area stops, the touch sensing device performs both a search for the first active pen in the first touch area and a search for the second active pen in the second touch area. 根據請求項11所述的觸摸感測系統，其中，所述觸摸感測裝置接收用於定義顯示間隔和觸摸間隔的同步信號，在一個幀的一些觸摸間隔內搜索所述第一主動式筆，並且在該一個幀的其它觸摸間隔內搜索所述第二主動式筆。A touch sensing system according to claim 11, wherein the touch sensing device receives a synchronization signal for defining a display interval and a touch interval, searches for the first active pen in some touch intervals of a frame, and searches for the second active pen in other touch intervals of the frame. 根據請求項12所述的觸摸感測系統，其中，在恢復對所述第一主動式筆和所述第二主動式筆的感測的情況下，所述觸摸感測裝置在所述一些觸摸間隔內感測所述第一主動式筆，並且在所述其它觸摸間隔內感測所述第二主動式筆。A touch sensing system according to claim 12, wherein, when the sensing of the first active pen and the second active pen is restored, the touch sensing device senses the first active pen in some of the touch intervals and senses the second active pen in the other touch intervals. 根據請求項10所述的觸摸感測系統，其中，所述觸摸感測裝置藉由所述搜索來識別所述第一主動式筆的位置。A touch sensing system according to claim 10, wherein the touch sensing device identifies the position of the first active pen by the search. 根據請求項10所述的觸摸感測系統，其中，所述觸摸感測裝置將觸摸驅動信號發送至所述第一觸摸區域和所述第二觸摸區域，並且回應於針對所述觸摸驅動信號的回應信號來感測物體對所述面板的觸摸或接近。The touch sensing system according to claim 10, wherein the touch sensing device sends a touch drive signal to the first touch area and the second touch area, and senses the touch or proximity of the object to the panel in response to a response signal to the touch drive signal.
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